My boss has EC500 and is happy with how it works. He would like
incoming calls to show the callers name as well as the number on
his cell phone. He does see both caller name and number on office
phone.

Does the Configuration Set option need to be changed? I'm having a
hard time finding documentation on what each configuration set
accomplishes.

If you place a call from your PBX you are more than likely sending
out the name and callerID but the cell phone and some other
locations (home, etc.) may or may not see the name depending on the
carrier used on that end.

Change the public unknown numbering for his extension, so the
output CPN would be his extension when displaying that on his
cellphone.

Sinuswerte

I'm not quite clear on what you mean "output CPN would be his
extension when displaying on his cellphone". He wants the persons
name and phone # calling his office phone to display on his cell
phone, same as what is shows on office phone. Is this what you
mean? thanks.

Is this actually possible? When I see an EC500 call on my cell
phone I only ever get the number. If I happen to have the number
stored as a contact on my cell phone I see the name (even with
someone's office extension if I've created a secondary phone number
for them with just their 4 digit extension)

Maybe it's just my service, but I've never seen a cell phone get
anything other than the phone number as caller ID (not like the
land line that gets a name as well). Basically I'm wondering if
it's a restriction of the cell service, or if the pbx can actually
pass on the name through to the cell phone as well, which is
basically the original question here that I didn't actually see
answered.